Revealing mistakes: In the scene showing the pyramids in Egypt, the word "Kable" is displayed backwards in Arabic letters. Since Arabic is read from right to left, the way it is shown in the movie, it would be read as "Lebaak".
Revealing mistakes: Another mistake of writing "kable" using Arabic letters is that they are not connected. In languages where Arabic letters are used for writing, letters of a word should be connected otherwise it is not readable (or very difficult to read).